Maey s



(No Model.)A

lIVI. S. GAGE.

. STOVE.

No. 384,517. Patented June 12,1888.

UNITED STATES PATENT OFFICE.

MARY S. GAGE, OF ST. LOUIS,'MISSOURI.

STOV E.

SPECIFICATION forming part of Letters Patent No. 384,517, dated June 12, 1888.

Application filed February 7, 1888.. Serial No. 263,238.

tion, in the wall or door of a stove, of a mica sheet upon the inside and glass upon the outside and a cool-air chamber between them.

Theinvention also consists in certain details, which will be set forth in the claims.

Figure I isa front view of a door to the combustion-chamber of a stove, so that the light from the fire will shine through the mica and glass. Fig. II is a vertical transverse section at II II, Fig. I. Fig. III is a transverse section, showing a form of the device.

l is 'part of the wall of the stove. l

2 2 are ears onthe wall or plate, forming members of the hinge, of which the other mehr ber, 3, is upon the rim of an inner door, 4, in which the mica plates 5 are fixed in any suitable or usual manner. The door 4 4has upon it ears 6, forming members of a hinge, of which another member, 7, is upon the outer door, 8.

9 is a latch, by which the free edge of the outer door is connected to the stove or to the inner door.

I0 are glass bulls-eyes, with the outer convex face formed with facets. Between the mica and the glass is a chamber, 11, through which air passes to moderate the temperature of the glass and to prevent injury from too high a temperature.

In Fig. III the air is shown entering at oriices l2 upon all sides of the air-chamber l1 and escaping from the chamber through perforations at 13 in the mica, while in Fig. II the air is shown entering the chamber through orifices 12 in its lower side and escaping (No model.)

through orifices 12 in the upper side. The course of the air is indicated by arrows in both Figs. II and III.

There may be additional holes, I2, for the entrance of air made through the front plate, 14, of the door, as indicated in Fig. I.

If the glass were placed in direct contact with the mica, or if a closed air-chamber were between the glass and t-he mica, the heat would splinter the glass; but by the passage of air between them the heat is kept down to a safe point.4

I do not confine myself to any particular means for supporting the mica or the glass,but prefer to support them on separate doors or frames, so that access maybe had to the inside faces to give means for cleaning, and also for the easy insertion of the disks. The disks are shown as held between an outer plate, 14, and

an inner removable plate, I5.

16 is a gauze sheet placed between the ire and the mica.' No novelty is claimed,however, in this sheet so placed.

I claim as my invention- 1. The combination, in a stove, of the mica plate 5, glass l0, and an airehamber, Il, between, having orifices I2 for the passage of air, substantially as and for the purpose set forth.

2. The combination ot' the mica, the glass bulls-eyes having facets ,and the air-chamber between them, with provision for the passage of air through the chamber, for the purpose set forth.

3. The combination, in a stove, of the two doors carrying, respectively, the mica 5 and glass 10, and an air-chamber between them, with orices in the edges or walls ofthe chamber for the passage of air, substantially as and for the'purpose set forth.

MARY S. GAGE.

In presence of- Jos. WAHLE, SAMT.. KNIGHT. 

